New iridium complexes with cyclometalated alkenylquinoline ligands as highly efficient saturated red-light emitters for organic light-emitting diodes

被引:100
作者
Rayabarapu, DK [1 ]
Paulose, BMJS [1 ]
Duan, JP [1 ]
Cheng, CH [1 ]
机构
[1] Natl Tsing Hua Univ, Dept Chem, Hsinchu 300, Taiwan
关键词
D O I
10.1002/adma.200400813
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Electroluminescent devices using new iridium complexes (see Figure) (PEQ)(2)Ir(acetylacetonate (acac)), (MPEQ)(2)Ir(acac), and (PEIQ)(2)Ir(acac), as dopant emitters give saturated red light with very high brightness and efficiencies. For example, a (PEQ)(2)Ir(acac)-based device showed Commission Internationale de L'Eclairage (CIE) coordinates (0.66, 0.33), brightness, and external quantum efficiency of 26400 cd m(-2) and 7.23%, respectively.
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页码:349 / +
页数:6
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